I am new to Rancher and containers. I would like to use 10+ older PCs to build a small Rancher cluster for the purpose of learning Rancher and later possibly moving some internal only workloads to it. I also want to consider running Ceph on each PC (similar to Proxmox). The PCs are HP 8000 SFF from 2011 and have 1=1Gb nic, 1=160GB HD, 4GB=RAM, and an Intel
proc. They will connect to a L2 network switch where VLANs could be used. I was thinking of installing RancherOS from iso on a small partition /dev/sda1 and use the rest of drive on /dev/sda2 for Ceph or other storage.
How much space should be reserved for RancherOS and Rancher Server use?
Should each PC connect to the switch by a single VLAN, or should they trunk to switch so different VLANs can be used for data, control, etc?
Will this work on a private LAN behind a firewall, where container public IPs are non routable 172.25.x.y addresses?
Thanks for any feedback you are able to provide:)